Electric automobile and power storage battery safety management control method

A technology for power battery and safety management, applied in electric vehicle charging technology, electric vehicles, electrical devices, etc., can solve the problems of complex battery fault management strategy, achieve the effect of simple structure, more controllers and less communication resources

Inactive Publication Date: 2018-06-19
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a power battery safety management control method, aiming to solve the defect of complex battery fault management strategy in the prior art

Method used

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  • Electric automobile and power storage battery safety management control method
  • Electric automobile and power storage battery safety management control method
  • Electric automobile and power storage battery safety management control method

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Embodiment Construction

[0039] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] The invention provides a power storage battery safety management control method. Such as figure 1 As shown, the power storage battery safety management control method in this embodiment includes the following steps:

[0041] Step S10: Divide all faults of the traction battery into several different fault levels according to the severity;

[0042] It should be noted that the aforementioned failure levels are divided according to the severity of the failure of the power battery, and are divided into multiple levels from low severity to high severity, such as from minor failure, moderate failure, serious failure, serious and emergency failure, etc. .

[0043] Step S20: The battery management system judges the failure level of the traction battery, and sends different signals to the vehicle controller according ...

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Abstract

The invention discloses an electric automobile and a power storage battery safety management control method. The power storage battery safety management control method includes the steps that all faults of a power storage battery are divided into multiple different fault levels according to the degrees of severity; a battery management system judges the fault level of the power storage battery; and a vehicle control unit receives the fault level, makes a response to the fault level and sends a control command to an execution component of a vehicle. According to the control method, all the faults are further divided into common faults and non-common faults, the common faults are sent to a CAN network through a networking protocol, and only fault codes of the non-common faults are sent. Thefaults of the power storage battery are managed according to the levels, the levels are provided with corresponding treatment measures, an interface is simple, logic is clear, occupied communication resources are small, the vehicle control unit does not need to judge the specific fault, and the fault of the power storage battery can be quickly judged and treated only through the simple fault level.

Description

technical field [0001] The invention relates to the field of power batteries of new energy vehicles, in particular to a safety management and control method for electric vehicles and power storage batteries. Background technique [0002] In recent years, power batteries have been widely used in new energy vehicles. In practical applications, failures such as single failure, temperature failure, communication failure, battery management system (BMS) hardware failure, current over-limit and high-voltage relay failure may occur. [0003] Due to the many failures of the power battery and the limited communication resources of the whole vehicle, it is not convenient to send all failures to the communication protocol in detail. The management system and other controllers have complicated management strategies on how to control and deal with power battery-related faults. Therefore, how to save communication resources and simplify fault control and management strategies on the prem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L3/04B60Q9/00
CPCY02T90/16B60L3/0046B60L3/04B60Q9/00
Inventor 朱合标张送邵杰谢佶宏卢晨
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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